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Add operator bool to modint #169

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Add operator bool to modint #169

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95a6273
add operator bool to modint
szdytom Aug 14, 2023
7109e28
swap true/false in modint operator bool
szdytom Aug 18, 2023
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2 changes: 2 additions & 0 deletions atcoder/modint.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -91,6 +91,7 @@ struct static_modint : internal::static_modint_base {

mint operator+() const { return *this; }
mint operator-() const { return mint() - *this; }
operator bool() const { return _v != 0; }
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mint pow(long long n) const {
assert(0 <= n);
Expand Down Expand Up @@ -206,6 +207,7 @@ template <int id> struct dynamic_modint : internal::modint_base {

mint operator+() const { return *this; }
mint operator-() const { return mint() - *this; }
operator bool() const { return _v != 0; }
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mint pow(long long n) const {
assert(0 <= n);
Expand Down